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The Thomas Block 100 Commercial St 1,532 - 13,634 SF of Office Space Available in Portland, ME 04101

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ALL AVAILABLE SPACES(6)

Display Rental Rate as

  • SPACE
  • SIZE
  • TERM
  • RENTAL RATE
  • SPACE USE
  • CONDITION
  • AVAILABLE
  • 2nd Floor, Ste 202
  • 1,596 SF
  • Negotiable
  • $39.96 CAD/SF/YR $3.33 CAD/SF/MO $63,780 CAD/YR $5,315 CAD/MO
  • Office
  • -
  • Now

Four (4) offices, open area and reception area

  • Listed rate may not include certain utilities, building services and property expenses
  • Reception Area
  • 4 Private Offices
  • 2nd Floor, Ste 204/206/208
  • 4,250 SF
  • Negotiable
  • $47.26 CAD/SF/YR $3.94 CAD/SF/MO $200,854 CAD/YR $16,738 CAD/MO
  • Office
  • -
  • Now

THE THOMAS BLOCK • Suites vary from 1,532± SF - 4,250± SF offices • Historic brick and stone building • Water views or Commercial Street views • On-site property management • Parking spaces available for lease at the Fore Street Garage

  • Listed rate may not include certain utilities, building services and property expenses
  • 3rd Floor, Ste 305/307
  • 1,614 SF
  • Negotiable
  • $35.79 CAD/SF/YR $2.98 CAD/SF/MO $57,769 CAD/YR $4,814 CAD/MO
  • Office
  • -
  • Now

THE THOMAS BLOCK Suites vary from 371± SF - 2,050± SF offices Historic brick and stone building Water views or Commercial Street views On-site property management Parking spaces available for lease at the Fore Street Garage

  • Listed rate may not include certain utilities, building services and property expenses
  • 4th Floor, Ste 403, 405 & 407
  • 2,592 SF
  • Negotiable
  • $35.79 CAD/SF/YR $2.98 CAD/SF/MO $92,773 CAD/YR $7,731 CAD/MO
  • Office
  • -
  • Now

THE THOMAS BLOCK • Suites vary from 371± SF - 2,592± SF offices • Historic brick and stone building • Water views or Commercial Street views • On-site property management • Parking spaces available for lease at the Fore Street Garage

  • Listed rate may not include certain utilities, building services and property expenses
  • 4th Floor, Ste 410/412
  • 2,050 SF
  • Negotiable
  • $34.75 CAD/SF/YR $2.90 CAD/SF/MO $71,237 CAD/YR $5,936 CAD/MO
  • Office
  • -
  • Now
  • Listed rate may not include certain utilities, building services and property expenses
  • 4th Floor, Ste 411/415
  • 1,532 SF
  • Negotiable
  • $35.79 CAD/SF/YR $2.98 CAD/SF/MO $54,834 CAD/YR $4,569 CAD/MO
  • Office
  • -
  • Now

Open concept with reception area, server room, two restrooms

  • Listed rate may not include certain utilities, building services and property expenses
  • Private Restrooms
  • Reception Area
Space Size Term Rental Rate Space Use Condition Available
2nd Floor, Ste 202 1,596 SF Negotiable $39.96 CAD/SF/YR $3.33 CAD/SF/MO $63,780 CAD/YR $5,315 CAD/MO Office - Now
2nd Floor, Ste 204/206/208 4,250 SF Negotiable $47.26 CAD/SF/YR $3.94 CAD/SF/MO $200,854 CAD/YR $16,738 CAD/MO Office - Now
3rd Floor, Ste 305/307 1,614 SF Negotiable $35.79 CAD/SF/YR $2.98 CAD/SF/MO $57,769 CAD/YR $4,814 CAD/MO Office - Now
4th Floor, Ste 403, 405 & 407 2,592 SF Negotiable $35.79 CAD/SF/YR $2.98 CAD/SF/MO $92,773 CAD/YR $7,731 CAD/MO Office - Now
4th Floor, Ste 410/412 2,050 SF Negotiable $34.75 CAD/SF/YR $2.90 CAD/SF/MO $71,237 CAD/YR $5,936 CAD/MO Office - Now
4th Floor, Ste 411/415 1,532 SF Negotiable $35.79 CAD/SF/YR $2.98 CAD/SF/MO $54,834 CAD/YR $4,569 CAD/MO Office - Now

2nd Floor, Ste 202

Size
1,596 SF
Term
Negotiable
Rental Rate
$39.96 CAD/SF/YR $3.33 CAD/SF/MO $63,780 CAD/YR $5,315 CAD/MO
Space Use
Office
Condition
-
Available
Now

2nd Floor, Ste 204/206/208

Size
4,250 SF
Term
Negotiable
Rental Rate
$47.26 CAD/SF/YR $3.94 CAD/SF/MO $200,854 CAD/YR $16,738 CAD/MO
Space Use
Office
Condition
-
Available
Now

3rd Floor, Ste 305/307

Size
1,614 SF
Term
Negotiable
Rental Rate
$35.79 CAD/SF/YR $2.98 CAD/SF/MO $57,769 CAD/YR $4,814 CAD/MO
Space Use
Office
Condition
-
Available
Now

4th Floor, Ste 403, 405 & 407

Size
2,592 SF
Term
Negotiable
Rental Rate
$35.79 CAD/SF/YR $2.98 CAD/SF/MO $92,773 CAD/YR $7,731 CAD/MO
Space Use
Office
Condition
-
Available
Now

4th Floor, Ste 410/412

Size
2,050 SF
Term
Negotiable
Rental Rate
$34.75 CAD/SF/YR $2.90 CAD/SF/MO $71,237 CAD/YR $5,936 CAD/MO
Space Use
Office
Condition
-
Available
Now

4th Floor, Ste 411/415

Size
1,532 SF
Term
Negotiable
Rental Rate
$35.79 CAD/SF/YR $2.98 CAD/SF/MO $54,834 CAD/YR $4,569 CAD/MO
Space Use
Office
Condition
-
Available
Now

2nd Floor, Ste 202

Size 1,596 SF
Term Negotiable
Rental Rate $39.96 CAD/SF/YR
Space Use Office
Condition -
Available Now

Four (4) offices, open area and reception area

  • Listed rate may not include certain utilities, building services and property expenses
  • 4 Private Offices
  • Reception Area

2nd Floor, Ste 204/206/208

Size 4,250 SF
Term Negotiable
Rental Rate $47.26 CAD/SF/YR
Space Use Office
Condition -
Available Now

THE THOMAS BLOCK • Suites vary from 1,532± SF - 4,250± SF offices • Historic brick and stone building • Water views or Commercial Street views • On-site property management • Parking spaces available for lease at the Fore Street Garage

  • Listed rate may not include certain utilities, building services and property expenses

3rd Floor, Ste 305/307

Size 1,614 SF
Term Negotiable
Rental Rate $35.79 CAD/SF/YR
Space Use Office
Condition -
Available Now

THE THOMAS BLOCK Suites vary from 371± SF - 2,050± SF offices Historic brick and stone building Water views or Commercial Street views On-site property management Parking spaces available for lease at the Fore Street Garage

  • Listed rate may not include certain utilities, building services and property expenses

4th Floor, Ste 403, 405 & 407

Size 2,592 SF
Term Negotiable
Rental Rate $35.79 CAD/SF/YR
Space Use Office
Condition -
Available Now

THE THOMAS BLOCK • Suites vary from 371± SF - 2,592± SF offices • Historic brick and stone building • Water views or Commercial Street views • On-site property management • Parking spaces available for lease at the Fore Street Garage

  • Listed rate may not include certain utilities, building services and property expenses

4th Floor, Ste 410/412

Size 2,050 SF
Term Negotiable
Rental Rate $34.75 CAD/SF/YR
Space Use Office
Condition -
Available Now

  • Listed rate may not include certain utilities, building services and property expenses

4th Floor, Ste 411/415

Size 1,532 SF
Term Negotiable
Rental Rate $35.79 CAD/SF/YR
Space Use Office
Condition -
Available Now

Open concept with reception area, server room, two restrooms

  • Listed rate may not include certain utilities, building services and property expenses
  • Reception Area
  • Private Restrooms

PROPERTY OVERVIEW

THE THOMAS BLOCK • Suites vary from 1,532± SF - 4,250± SF offices • Historic brick and stone building • Water views or Commercial Street views • On-site property management • Parking spaces available for lease at the Fore Street Garage

  • Signage

PROPERTY FACTS

Building Type
Office
Year Built
1900
Building Height
4 Stories
Building Size
61,657 SF
Building Class
B
Typical Floor Size
19,000 SF
Unfinished Ceiling Height
10’
Parking
Surface Parking
Covered Parking
Walk Score®
Very Walkable (86)
Bike Score®
Very Bikeable (80)
What is a Walk Score®, Transit Score® & Bike Score®?
Walk Score® measures the walkability of any address.
Transit Score® measures access to public transit.
Bike Score® measures bikeability of a location.
What is a Walk Score®
, Transit Score® & Bike Score?
Walk Score® measures the walkability
of any address. Transit Score®
measures access to public transit. Bike Score®
measures bikeability of a location.®
  • Listing ID: 29180115

  • Date on Market: 2025-08-05

  • Last Updated:

  • Address: 100 Commercial St, Portland, ME 04101

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